Here are the specs on the yellow LEDs that I will be using:
[front]
If=30mA
Ipf=100mA
Vf=1.8-2.4
luminosity=
min 6100mcd@1.8V,20mA
typical 10300mcd@2.0V,20mA
max 16700mcd@2.4V,20mA
50% power angle 15deg
And for the red:
[back]
If=30mA
Ipf=150mA
Vf=2.0-2.8V
luminosity=
min 3800mcd@2.0V,20mA
typical 8200mcd@2.4V,20mA
max 11000mcd@2.8V,20mA
50% power angle 20deg
Yes, I know, not much side output. Won't matter, as each of the 4 module sets will be mounted in weather resistant boxes.
Resistor net that I will be using between the 4017 and the yellow LEDs will be rated at 100Ω¼W, and for the red, 68Ω¼W
I have the LED board set up with anode connected to the 4017, common cathode on each row connected to the 16f628. So what you are saying is that I should reverse the LEDs to common anode?
I was planning on going low with the rows, until Blueroom said I would need transistors to drive for brightness. That is why I changed the control board schematic.
I am planning on using a 6V, 4.5AH SLA, and according to the datasheet on it, I can draw 1500mA for 2 hours before the terminal voltage drops to ½ the nominal charged voltage. I seriously doubt I will draw that much until I add more goodies to it, such as:
white led sets on the front for night riding,
another set of red modules for a bike trailer I'm building,
a custom bike computer, For cadence, MPH, etc.
I'll also be adding side lights later on.